The Douglas DC-4 is an American four-engined, propeller-driven airliner developed by the Douglas Aircraft Company. Military versions of the plane, the C-54 and R5D, served during World War II, in the
American Airlines NC90423
Aerolíneas Argentinas DC-4 starting engines at Buenos Aires international airport in 1958
Pan American DC-4 in flight
The Douglas DC-6 is a piston-powered airliner and cargo aircraft built by the Douglas Aircraft Company from 1946 to 1958. Originally intended as a military transport near the end of World War II, Doug
Douglas DC-4
…Douglas C-54 Skymaster Douglas DC-6 Douglas DC-7…
A Douglas DC-6B of Western Airlines, Oct 1956
The prototype Douglas XC-112A which first flew on 15 February 1946, converted to DC-6 standard in 1956 and flown by TASSA of Spain from 1963 until 1965
Passengers alighting from an SAS DC-6: Note the upper row of windows, indicating this was built as the optional sleeper variant of the original-length DC-6
United Airlines DC-6 at Stapleton Airport, Denver, in September 1966